Results 71 to 80 of about 2,910 (216)

The Effects of Protected Areas in Nepal as a Barrier Against Plant Invasions Are Associated With Lower Propagule Pressure and Less Intensive Disturbance

open access: yesDiversity and Distributions, Volume 31, Issue 9, September 2025.
ABSTRACT Aim Protected areas are established to conserve global biodiversity threatened by various factors, including invasive plants. We recorded naturalised alien plants inside and outside of protected areas to test whether they act as a barrier against the spread of alien plants.
Suneeta Bhatta   +2 more
wiley   +1 more source

Characterization and Phylogenetic Analysis of the Chloroplast Genome of Carissa spinarum L. (Rauvolfioideae, Apocynaceae)

open access: yesEcology and Evolution, Volume 15, Issue 8, August 2025.
In this study, we present the first de novo assembled chloroplast genome of Carissa spinarum L. and provide detailed insights into its genomic features. This is the second genome we are characterizing from the genus Carissa L. as before the article on Carissa macrocarpa exists. Furthermore, we reconstructed the phylogenetic relationships of C. spinarum
Yuhua Huang   +7 more
wiley   +1 more source

Alstonia longifolia

open access: yes, 2009
Ejemplar de Alstonia longifolia colectado por Ma.
Enrique Ramirez Garcia
core  

Hypoglycemic potential of triterpenes from alstonia scholaris

open access: yes, 2013
A dichloromethane extract of air-dry leaves of Alstonia scholaris (L.) R. Br. contains a mixture of cycloeucalenol (1a), cycloartanol (1b) and lupeol (1c); lupeol acetate (2); and betulin (3).
Lim, Kosta Fremmielle C.   +3 more
core   +1 more source

Indole Alkaloids from the Leaves of Alstonia scholaris [PDF]

open access: yes, 2009
A new indole alkaloid, akuammidine-N-oxide (1) was isolated from the leaves of Alstonia scholaris (Apocynaceae) together with akuammidine (2), and the structure was elucidated by NMR spectral analysis and chemical correlation.
Saori Miyama, -   +9 more
core   +1 more source

Anti-fertility and abortifacient potential of hydroalcoholic leaves extract of Alstonia scholaris in female rats: An ethnomedicine used by Papua women in New Guinea

open access: yesBulletin of Faculty of Pharmacy Cairo University, 2017
Aim of the study: Alstonia scholaris Linn. (Family: Apocynaceae) commonly known as Devilʼs tree or Saptaparna tree, is traditionally used by the women of Papua New Guinea to induce abortion.
Manjusha Choudhary   +4 more
doaj   +1 more source

Characterization of Silver Nanoparticles Synthesized Using Hypericum perforatum L. and Their Effects on Staphylococcus aureus

open access: yesMicroscopy Research and Technique, Volume 88, Issue 8, Page 2321-2332, August 2025.
This study investigated the effects of biosynthesized silver nanoparticles (AgNPs) derived from Hypericum perforatum on the cell morphology of Gram‐positive Staphylococcus aureus bacterial cells, with FE‐SEM analysis showing distinct morphological changes in AgNP‐treated S. aureus cells compared to the control group.
Canan Sevinc‐Sasmaz   +3 more
wiley   +1 more source

Photoactivated [3+2] Addition of 6,7--angustilobine B to Fullerene [C]

open access: yesNatural Product Communications, 2012
A synthesis of a new alkaloid-fullerene conjugate ( 1 ) is reported. The reaction was carried out by photoinduced [3+2] cycloaddition of the Alstonia indole alkaloid, 6,7- seco -angustilobine B ( 2 ), to fullerene[C 60 ] ( 3 ) under aerobic conditions ...
Allan Patrick G. Macabeo   +4 more
doaj   +1 more source

Comparative Study of Resistance and Feeding Preference of 24 Wood Species to Attack by Heterotermes indicola (Wasmann) and Coptotermes heimi (Isoptera: Rhinotermitidae, Termitidae) in Pakistan.

open access: yesSociobiology, 2015
Present study was conducted to evaluate the laboratory and field preference of 24 Pakistani wood species: Azadirachta indica (Neem), Pinus  roxberghii (Chir), Dalbergia sissoo (Sheesham), Populus deltoides (Popular), Albizzia lebbeck (Shirin), Abies ...
Farkhanda Manzoor Dugal   +1 more
doaj   +1 more source

Potensial Antimalaria dan Antioxidan Ekstrak Metanol Daun kayu titi (Alstonia sp)

open access: yes, 2023
Alstonia sp leaves extract has previously been reported as a potential antimalarial drug as traditional. This study aims to analyze the antimalarial activity and determine the antioxidant potential of titi tree leaves (Alstonia sp).
Nindatu, Maria   +4 more
core  

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